Marker holder



FIG. 1 is a left front top perspective view of the marker holder;

FIG. 2 is a front bottom perspective view thereof;

FIG. 3 is a rear bottom perspective view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a rear view thereof;

FIG. 8 is a top plan view thereof;

FIG. 9 is a bottom plan view thereof;

FIG. 10 is a front bottom perspective view thereof with a stamper markershown in broken lines.

The broken lines showing the stamper marker are for illustrativepurposes only and forms no part of the claimed design.

The ornamental design for marker holder, as shown and described.